Yintoni i-laser ye-semiconductor yoqhagamshelwano olubanzi

Yintoni ii-laser ye-semiconductor yoqhagamshelwano olubanzi
Iilaser zisetyenziswa phantse kuzo zonke iinkqubo zokuva i-fiber optic ezisasazwe (DOFS) kuba zinokufaka i-infusion ngokufanelekileyoiileser ezinamandla aphezuluzibe ziifayibha. Nangona kunjalo, kukho iintlobo ezahlukeneyo zeelaser, kwaye apha iintlobo eziphambili zifakwa ngokulandelelana kobude bokuhambelana, oko kukuthi, ububanzi be-spectral obunciphayo. Ngokubanzi, i-laser yenziwe yi-gain medium eyandisa ukukhanya okusasazeka kuyo kwaye inike impendulo yokuthumela ukukhanya okukhulisiweyo kwakhona kwi-gain medium ukuze kujikelezwe i-gain. Ke ngoko, ukuqala ngokukhupha okuzenzekelayo ngaphakathi kwe-gain medium, kuya kuveliswa amaza okukhanya aqinileyo nahambelanayo, aneempawu ezixhomekeke kwi-gain medium kunye neempawu zempendulo. Ngokwesiqhelo, impendulo ibonelela ngesakhiwo esivakalayo esenza indlela enye okanye ezingaphezulu, nganye ikhupha ngaphakathi koluhlu oluncinci lwe-spectral.
Unxibelelwano olubanzii-laser ye-semiconductor, ilaser ye-semiconductor elula neyokuqala, iqulathe ummandla we-semiconductor gain owenziwe yi-pn junction yezinto ezithe ngqo ze-bandgap (ezifana ne-GaAs), kunye nempendulo ebonelelwa ngokubonakala okuvela kwiindawo ezicociweyo ze-laser chip; Ubude bee-laser chips budla ngokuba ngamakhulu aliqela ee-micrometer. Olu lwakhiwo loqhagamshelo lwenzelwe ukuba ngaxeshanye luthintele abathwali betshaja kunye nokukhanya okusasazeka ngaphakathi kommandla we-gain. Njengee-diode, ezi zixhobo zinoqhagamshelwano lombane kumacala omabini. Kwisixhobo soqhagamshelwano olubanzi, ububanzi be-electrode ephezulu bungamashumi aliqela ee-micrometer (ngesiqhelo malunga ne-75 μ m); Ke ngoko, ukukhutshwa kokukhanya kwenza umgca ecaleni kolu bubanzi, oluyimo enye kwiplane ethe nkqo kwi-junction, kwaye lubonisa usasazo oluntsonkothileyo lwentsimi yokukhanya yemowudi ezininzi kwiplane ehambelana ne-junction. Ngenxa yale mo yokukhupha, ii-laser zoqhagamshelwano olubanzi zinokudityaniswa ngokufanelekileyo kuphela kwiifayibha ze-multimode. Nangona kunjalo, amandla elaser yoqhagamshelwano olubanzi aphezulu, kwaye phantsi kweemeko zokusebenza ezishukumayo, isixhobo se-electrode se-75 μ m sinokukhupha amandla aphezulu adlula i-10 W.
I-laser yoqhagamshelwano olubanziIidiode zifanelekile kwiintlobo ezithile zeenkqubo zokuva ubushushu ezisasazwa nge-Raman multimode, njengoko ezi nkqubo zingadingi ubumsulwa obuphezulu be-spectral. Zikwasebenza nakwizinzwa ezisekelwe ekulahlekelweni, ezifana nezo nkqubo zisebenzisa i-micro bend elawulwayo njengendlela yokuva.